According to the video description, it is from a live concert in Virginia, 1970. Although its sound quality is far from good, intensity and excitement of the performance itself is like “out of this world”.

Probably I have watched this over a hundred of times, but because of the heavy tension, energy and perfection the film contains, I still have not get bored of watching – instead, every time I watch, I cannot help shed tears of gratitude. I sincerely hope from my heart, that the official release of this video is available as soon as possible . . .